Catastrophism & Planetary Cataclysm Models

Geological and historical models attributing Earth's strata and ancient upheavals to sudden, high-energy global cataclysms.

Specifications & Metrics

type: Catastrophism & Impact Chronologies
timespan: Deep geological time through Bronze Age antiquity (recurring sudden revolutions)
defining boundary: Sharp faunal turnovers, mass-extinction boundaries, flood deposits, and erratics
proponents or Body: Georges Cuvier (1812), J Harlen Bretz (1923), Immanuel Velikovsky (1950), Alvarez team (1980)
key evidence: Fossil extinction horizons, Channeled Scablands megafloods, impact craters, ancient cataclysm records

Formulated scientifically in the early 19th century by French anatomist Georges Cuvier in his 'Discourse on the Revolutionary Upheavals on the Surface of the Globe' (1812), catastrophism observed that sharp fossil boundaries and marine strata interspersed with terrestrial beds record sudden, violent revolutions and inundations.
Although Charles Lyell's gradualist uniformitarianism dominated geology for over a century, neocatastrophism re-entered geology through J Harlen Bretz's 1923 proof that the Channeled Scablands were carved by catastrophic Glacial Lake Missoula megafloods and the 1980 discovery of the K–Pg asteroid impact.
In comparative historical chronology, Immanuel Velikovsky's 'Worlds in Collision' (1950) synthesized global ancient annals and flood traditions to propose that planetary near-approaches of Venus (~15th century BCE) and Mars (~8th century BCE) induced electrical discharges, axial perturbations, and synchronized geological upheavals across ancient civilizations.